Caroline Islands, 1900, 3pf to 50pf on Cover. Six overprints on registered cover to Germany, 2 of the values are the scarce 48 degree varieties of 20pf & 50pf overprints; all tied by "Saipan * Marianen 14/11/00 cds's"; there is a vertical fold barely noticeable and not affecting stamp; philatelic but most attractive nevertheless, a Very Fine cover; with 1988 Steuer certificate. Scott No. 4a+6a+1-3, 5; $1,866 as used  Estimate $600 - 800. $0 (Image)